package ex01;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.OutputStream;

/**
 * Created by Administrator on 2016/2/29.
 */
public class Response {
    private Request request;
    private static final int BUFFER_SIZE = 1024;
    OutputStream output;

    public Response(OutputStream output) {
        this.output = output;
    }

    public void setRequest(Request request) {
        this.request = request;
    }

    public void sendStaticResource() {
        byte[] bytes = new byte[BUFFER_SIZE];
        FileInputStream fis = null;
        try {
            File file = new File(HttpServer.WEB_ROOT,request.getUri());
            if (file.exists()){
                fis = new FileInputStream(file);
                int ch = fis.read(bytes,0,BUFFER_SIZE);
                while (ch != 1){
                    output.write(bytes,0,ch);
                    ch = fis.read(bytes,0,BUFFER_SIZE);
                }
            }else {
                String errorMessage = "HTTP/1.1 404 File Not Found\r\n" +
                        "Content-Type : text/html\r\n" +
                        "Content-Length : 23\r\n" +
                        "\r\n" +
                        "<h1>File Not Found</h1>";
            }
        }catch (Exception e){
            //thrown if cannot instantiate a File object
            System.out.println(e.toString());
        }finally {
            if (fis!=null){
                try {
                    fis.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }

    }
}
